FSA CK-OSC4000 Omega Left Alloy Crankarm Crank Arm Double 172.5MM BB30

( Brand: Fsa ), ( Manufacturer Part Number: CK-OSC4000 ), ( Model: OMEGA ), ( Part Type: Crank ), ( Crankarm Length: 172.5 Mm ), ( Color: Black ), ( Compatible Bike Type: Universal, Cyclocross Bike, Fitness-/crossbike, Fat Bike, Hardtail Bike, Gravel Bike, Mountain Bike, Racing Bike, Road Bike, Time Trial/triathlon Bike, Touring Bike ), ( Bottom Bracket Shell Type: Bb30 ), ( Set Includes: Left Crank Arm ), ( Material: Aluminum ), ( Item Weight: 280g )

Review FSA Omega Left 172.5mm Bb30 Alloy Crankarm Crank Arm Double

The FSA CK-OSC4000 Omega Left 172.5mm BB30 Alloy Crankarm is a high-performance crankarm designed for cyclists seeking a durable and efficient ride.

Crafted from lightweight yet robust alloy, this crankarm offers a perfect balance between weight reduction and strength. The BB30 bottom bracket interface ensures optimal power transfer, enhancing your pedaling efficiency and reducing energy loss.

The FSA CK-OSC4000 Omega Left 172.5mm Crankarm is specifically designed for left-footed riders and is part of the Omega series, known for its sleek design and smooth operation. The crankarm features a 172.5mm length, providing an optimal Q-factor for a comfortable and efficient pedal stroke.

This double crankarm is suitable for a wide range of cycling disciplines, from road cycling to gravel and cyclocross. The FSA CK-OSC4000 Omega Left 172.5mm BB30 Alloy Crankarm is a versatile and reliable choice for cyclists who demand performance and durability from their equipment.

With its precision-machined construction and meticulous finishing, this crankarm not only delivers exceptional power transfer but also adds a touch of style to your bicycle. Whether you're a competitive racer or a weekend warrior, the FSA CK-OSC4000 Omega Left 172.5mm BB30 Alloy Crankarm is an excellent addition to your cycling arsenal.

Product: FSA K-Force OSC Carbon Crankarm (Left 172.5mm, BB30, Alloy Crankarm, Double)

1. high-quality carbon fiber construction, known for its lightweight and stiffness.

2. BB30 bottom bracket standard provides a smooth, efficient power transfer.

3. Alloy crankarms offer a durable, cost-effective alternative to pure carbon crankarms.

4. Double chainring option caters to a wide range of gearing preferences.

1. Carbon fiber components can be prone to damage from impacts, requiring careful handling.

2. Alloy crankarms may not be as lightweight as pure carbon crankarms.

3. The double chainring setup might not be preferred by some riders who prefer a more compact or single chainring setup.

4. The price point may be higher than some alloy crankarms without the carbon fiber construction.

Conclusion: The FSA K-Force OSC Carbon Crankarm (Left 172.5mm, BB30, Alloy Crankarm, Double) is a high-performance crankarm that offers a good balance between lightweight, stiffness, and durability. Its BB30 bottom bracket standard and double chainring option cater to a wide range of riders. However, it may not be the most cost-effective option, and its carbon fiber construction requires careful handling to avoid damage.

Recommendation: If you are looking for a lightweight, stiff, and efficient crankarm with a double chainring setup and are willing to pay a premium for carbon fiber, this product could be a good choice. However, if you are on a tighter budget or prefer a different chainring setup, there might be other options available that better suit your needs. Always ensure to properly care for and maintain carbon fiber components to maximize their lifespan.

Details:

FSA Omega Left 172.5mm BB30 Alloy Crankarm Crank Arm CK-OSC4000 Double, Please view all photos for condition and details.

part #: ckosc4000 price

• $24.97

specifications ribicycl:

• brand: Fsa
• mpn: Ck-osc4000
• model: Omega
• part type: Crank
• crankarm length: 172.5 Mm
• color: Black
• compatible bike type: Universal, Cyclocross Bike, Fitness-/crossbike, Fat Bike, Hardtail Bike, Gravel Bike, Mountain Bike, Racing Bike, Road Bike, Time Trial/triathlon Bike, Touring Bike
• bottom bracket shell type: Bb30
• set includes: Left Crank Arm
• material: Aluminum
• item weight: 280g

offer ribicycl:

• quantity: 1
• started: November 1, 2025
• options: Ship-to-home
• sold: 0
• availability: In Stock

general ribicycl:

• condition: Used
• Cycling > Bicycle Components Parts > Cranksets

payments ribicycl:

• wallet: Google-pay
• other
• credit card: Diners-club

shipping ribicycl:

• type: Calculated
• carrier: USPS
• class: Standard
• cost: $8.54
• service: USPS Ground Advantage
• transit: 4-9 Days

returns ribicycl:

• method: Money back
• policy: Returns Accepted
• time: 30 Days
• paid by: Buyer

seller ribicycl:

• rating: 99.8%
• city: Maxton, North Carolina
• # reviews: 5413

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